crusade
cru-sade
noun
An energetic, organised campaign for a cause or against an abuse.
"She launched a crusade against plastic waste."
noun
A medieval Christian military expedition to recover the Holy Land.
"Richard the Lionheart led a major crusade."
verb
To participate in or lead an energetic campaign for a cause.
"They crusaded for better public transport."
Thesaurus
Synonyms: fight, campaign, agitate, push, press, drive, cause, effort, movement